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2 years ago

PLEASE HELP BEST ANSWER GETS BRAINLIEST

Mathematics

1 answer:

astraxan [27]2 years ago

7 0

Since y=Mx+b (m being slope and b being y-intercept,
The answer is y=2x-7

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The next number in the series of intervals of 38, 36,30,28,22,is=

Ivenika [448]

There is a pattern of -2, -6, so the next number is 20.

7 0

3 years ago

Estimate the sum of 487 and 310

Ronch [10]

487 + 310 ≈ 500 + 300 ≈ 800

3 0

3 years ago

Read 2 more answers

The prices of commodities X,Y,Z are respectively x, y, z, rupees per unit. Mr. A purchases 4 units of Z and sells 3 units of X a

liubo4ka [24]

Answer:

$(x,y,z)=(1477, 1464, 1437)$

Step-by-step explanation:

Consider the selling of the units positive earning and the purchasing of the units negative earning.

Mr. A purchases 4 units of Z and sells 3 units of X and 5 units of Y
Mr.A earns Rs6000

So, the equation would be

$3x + 5y - 4z = 6000$

Mr. B purchases 3 units of Y and sells 2 units of X and 1 units of Z
Mr B neither lose nor gain meaning he has made 0₹

hence,

$2x - 3y + z = 0$

Mr. C purchases 1 units of X and sells 4 units of Y and 6 units of Z
Mr.C earns 13000₹

therefore,

$- x + 4y + 6z = 13000$

Thus our system of equations is

$\begin{cases}3x + 5y - 4z = 6000\\2x - 3y + z = 0\\ - x + 4y + 6z = 13000\end{cases}$

<u>Solving </u><u>the </u><u>system </u><u>of </u><u>equations</u><u>:</u>

we will consider elimination method to solve the system of equations. To do so ,separate the equation in two parts which yields:

$\begin{cases}3x + 5y - 4z = 6000\\2x - 3y + z = 0\end{cases}\\\begin{cases}2x - 3y + z = 0\\ - x + 4y + 6z = 13000\end{cases}$

Now solve the equation accordingly:

$\implies\begin{cases}11x-7y=6000\\-13x+22y=13000\end{cases}$

Solving the equation for x and y yields:

$\implies\begin{cases}x= \dfrac{223000}{151}\\\\y= \dfrac{221000}{151}\end{cases}$

plug in the value of x and y into 2x - 3y + z = 0 and simplify to get z. hence,

$\implies z= \dfrac{217000}{151}$

Therefore,the prices of commodities X,Y,Z are respectively approximately 1477, 1464, 1437

6 0

2 years ago

it is 3,452 miles round trip to craig's aunt's house.if he travels to her house 3 times this year, how many miles did he travel

sveta [45]

(3,452 * 2) = round trip = 6,904.

6,904 * 3 = total distance = 20,712.

Therefore, the final answer is 20,712 miles.

8 0

3 years ago

HELLLPPP ME PLEEEASE PLEEASE I BEG U I don't know whisker plots I thought it would be easy buts it's hard I mean making the grap

Step2247 [10]

Whisker plots is not that hard you just have to no the Quartiles
the center of the graph is Q2 the first dot to the left is the lower quartile the last dot to the left is upper quartile so the second dot is Q1 and the 4 dot is Q3

3 0

2 years ago